Trolley-pole.



Nb. 763,820. PATENTED JUNE 28, 1904.

A. S. WEAVER.

TROLLEY POLE.

' APPLICATION FILED AUG. 1 .1 N0 MODEL.

2 SHEETS-SHEET 1.

5E7? IIIIIIIIIIIIII PATENTED JUNE 28, 1904.

A. S. WEAVER.

TROLLEY POLE.

APPLICATION FILED AUG 19 1903 2 SHEBTS SHEET 2.

N0 MODEL.

Invent-07':

0.. WASHIN ANDRUS s. WEAVER,

Patented June 28, 1904.

PATENT OEEIcE.

OF JOY, NEW YORK.

TROLLEY-POLE.

SPECIFICATION forming part of Letters Patent No. 763,820, dated June 28,1904.

Application filed August 19, 1903.

To all whom it may concern.-

Be it known that I, ANDRUS S. WEAV R, of Joy, in the county of Wayne andState of New York, have invented a new and useful Improvement inTrolley-Poles, which improvement is fully set forth in the followingspeciiication and shown in the accompanying drawings.

My invention is an improved trolley-pole with associated parts forelectric-railway cars, the same being hereinafter fully described, andmore particularly pointed out in the claims, reference being had in thisspecification to the accompanying drawings, forming a part thereof.

The trolley-poles of electric-railway ears, as commonly made are held orurged upward with the trolley-wheels against the currentwires by meansof springs near the decks of the cars, and when, as frequently occurs, atrolleywheel leaves the wire the free end of the pole will be thrownfarther'upward by the spring in position to encounter the staywires orother parts of the overhead work as the car moves ahead, and so beliable to cause serious damage and loss.

The main object of my invention is to obviate this difliculty byproviding mechanism whereby the free end of the pole will be quicklyfolded and drawn down out of the way of the overhead work immediatelyafter the wheel jumps the wire and releases the pole.

Other objects and advantages of the invention will be brought out andmade to appear in the specification following.

Figure 1 is a side elevation of the upper end of the trolley-pole andassociated parts, showing the head, parts being shown in variouspositions by full and dotted lines and parts being broken away. Fig. 2is a cross-section of parts on the dotted line 2 2 in Fig. 1. I, Fig. 3is a plan of the lower side of the trolleyhead seen as indicated byarrow 3 in Fig. 1. Fig. 4: is a plan of the trolley-headand associatedparts seen as indicated by arrow 4L in Fig. 1. Fig. 5 is a transversesection on the dotted line 5 5 in Fig. 4, further showing the form ofthe swivel-neck of the trolley-head. Fig. '6 is a longitudinal sectionof parts of the trolley-head on the dotted line 6 in Fig. 4,

further showing the construction.

Serial No. 170,029. (No model.)

Fig. 7 is a plan of the joint-section of the trolley-head seen asindicated by arrow 4.111 Fig. 1, the

cap of the swivel-bearing being removed to uncover inner parts. Fig. 8is a side elevation of parts at the lower end of the pole, showing theswivel-base and superincumbent parts, parts being broken away and otherparts shown in two positions each by full and dotted lines. Fig. 9 is aplan of the swivelbase and other parts near the deck of the ear, theforked holder being viewed as indicated by arrow 9 in Fig.8 and theswivel-base with actuating-spring and other parts seen as indicated byarrow 9% in Fig. 8, parts being broken away. Fig. 10 is acentralhorizontal section of a part of the spring-barrel and theactuating-spring, taken on the dotted line 10 in Fig. 8, further showingthe construction. Fig. 11 is a side elevation of the swivel-base and thebase-block with supporting-timber above the deck of the car, parts beingbroken away. Figs. 8, 9, and 11 are drawn to scales smaller and Figs. 2,5, 7, and 10 to various scales larger than that of Figs. 1, 3, and 4.

In the drawings, A is the body of the trol ley-pole, held at its lowerend in a clamp-box B, Figs. 8 and 9, of a forked holder C.

- D is a horizontal swivel-base holding the upper parts of themechanism, formed with short standards a (a, carrying a cross-rod 7),piercing the branches of the holder 0, as shown, the latter havingmotion in a vertical plane on the rod. This swivel-base is heldpivotally in a base-block E of common kind, Fig. 11, resting in theusual manner upon a longitudinal plank or timber F above the deck of thecar, the swivel-base having horizontal pivotal motion in the base-block.

G, Figs. 8, 9, and 10, is a horizontal springbarrel having a forked headm, with its branches pierced and held by the cross-rod b and held at itsopposite end in a short standard cof the swivel-base D. Thespring-barrel carries upon its exterior an actuated spring (Z and withinit a block or body 0, having short'arms ff, projecting laterally inopposite directions through longitudinal slots g g in opposite sides ofthe barrel G. A chain it is secured to the block 0 and passing aroundupward within the body A. of the pole, as

' tion and novel action.

a carrying-wheel c on the cross-rod b has its opposite end secured by acoupling to the lower end of a pull-rod or cable Z, reaching shown. Atits upper end the pull-rod l is secured to a swinging trolley-head H,constituting the upper end or terminal of trolleypole. (See Figs. 1, 3,4, and 6.) The actuated spring (Z is confined at its ends between thearms ff of the block a and the forked head m of the spring-barrel, asshown, its action being to push back against the arms ff, and so bring atension upon the chain it and the pull-rod Zto hold the upper end of thetrolley-pole normally up with the trolleywheel against the current-wirea.

The trolley-head H is of peculiar construc- It consists, in addition tothe trolley-wheel I, of a bifurcated holder K for the wheel and ajoint-section L, connected with the body A of the pole by means of apivot pin or bolt 0, so as to swing in a vertical plane and undercertain circumstances double back upon the pole or become folded, asindicated by dotted position in Fig. 1.

By viewing Fig. Sit will be seen that by making the proper connectionsand by using an overpowering-spring-that is, a spring of suiiicientforce power to support the pole A without forcing the spring inward, butleaving it entirely to be controlled by the operation of the pullcordthepole A will be situated on the dotted lines in Fig. 8 and which may bedrawn down and secured to the deck of the car when not in use and whenrelieved therefrom will instantly return thereto automatically, fromwhich position the pole will be elevated by the action of the leveredhead H as it is drawn outwardly, which forces the draw-rod upward in thebody of the pole, which actuates the actuating-spring d for folding thelevered head H, but which cannot fold for the reason that thetrolley-wheel I is placed under the current-wire and held down therebyto traverse it, which causes the actuated spring (Z to actuate andelevate the pole A to its normal altitude.

It will be seen by viewing Figs. 1, 4, and 6 that the bearing at P ofthe pull-rod l with the head H is above and when extended outward movesover and inside of the joint-bolt 0, as shown in Figs. 4 and 6, whichthereby forms a levered bearing on the head H, so that the pull of therod upon the levered head caused by the action of the actuating-spring(Z, as described, acts directly upon folding this levered head Hinwardly and downwardly; but so long as the trolley-wheel I is incontact with the current wire it and pressed downward by the wire thehead H cannot double back and the real action of the spring is then topress the wheel against the wire. If, however, this contact be broken,the spring will actuate and instantly fold the head inwardly anddownwardly onto the body of the pole entirely out of the way of alloverhead work, as shown by dotted lines in Fig. 1. The trolley-wheel Iturns upon an axial bolt 1' in the bifurcated holder K, Figs. 1, 3, and4, said holder being reduced to a cylindrical neck S, held to have alimited caster swivel action between the opposing parts of thejoint-section L. This joint-section is formed with a middle extendedpart 2? between the parts a u of the upper divided end of the pole A andwith other parallel extended parts or tongues Q) o overlapping therespective parts a u of the pole, all said parts t, u a, and '0 '0constituting a five-part joint pierced by the common pivot-bolt 0. Theneck S of the holder K being cylindrical permits of a limited casterswivel motion for said holder in the joint-section L, which is desirableat times in practice-as,for instance, when the car is rounding a curve.In such cases a side pressure is brought against the trolley-wheel,which, on account of the ability of the holder K to turn in its bearingin the joint-section, is more sensitive to such side pressure and yieldsmore readily to it through short distances than does the more cumbersomeswivel-base D with its load of weighty mechanism. To limit the extent ofthe swivel motions of the holder K in the joint-section L, the inner orlower end of the neck S is enlarged or expandedas, for instance, bybeing formed with a cross-bar 20, Figs. 2 and 7, occupying a cavity 00in the joint-section L. This cavitym is formed as to length or extent tocontrol the distance through which the holder K may turn one way or theother in the section. The removable cap 3/ of the joint-section L isformed with a longitudinal cavity 2, Figs. 2 and 4, to make way for thepull-rod Zwhen the trolley-head H is folded down, as shown by dottedlines in Fig. 1, a corresponding cavity a being formed in the neck S ofthe bifurcated holder K, as shown, for the same purpose. A pendent arm6, Figs. 1 and 3, is pivoted be tween lugs or bearings d of thebifurcated holder K, to the free end of which the ordinary cord 0 issecured for the use of the conductor or other attendant on the car inhandling and controlling the upper end of the trolley-pole and to turnthe head H back to its extended position. (Shown by full lines in Fig.1.) The arm b is formed with a stopfoot 0 in position to bear againstthe adjacent face of the holder K, as shown by dotted lines in Fig. 1,to hold the free end of the arm up away from the adjacent section L whenin the folded position of the head H the cord 0 is pulled by theattendant. Having thus described my invention, I claim as new and desireto secure by Letters Patent 1. A trolley-pole having'an automaticfolding head or part at its upper end, resting on, and joined pivotallyto the body of the pole, and adapted to swing in a vertical planeupwardly and outwardly to be placed under the current-wire, to traverseit, and if relieved therefrom will instantly fold back onto the body ofthe pole automatically.

2. A trolley-pole having an automatic folding head or part at its upperend, resting on and joined pivotally to the body of the pole, andadapted to swing in a vertical plane inwardly and downwardly onto thebody of the pole automatically, said head, comprising a wheel, totraverse the current-wire a bifurcated holder for the wheel and ajoint-section carrying the bifurcated holder, the latter having alimited cast or swivel motion, in said joint-section.

3. A trolley-pole having a hollow body, a head carrying a trolley-wheel,joined pivotally to the body, a pull-rod within the body connected withthe head and means for pulling said rod in a direction away from thehead, and a pivotal cord-carrying arm, carried by said head, and formedwith a stop-foot to limit its motion.

4. A trolley-pole constructed as described and shown, having a slottedspring-barrel, an actuated spring on the barrel, amovable block in thebarrel, with arms to actuate the spring, and a chain for connecting thepull-rod with the block in the barrel.

5. A trolley-pole having a swivel-base, and a forked holder secured onthe swivel-base, by a holding cross-rod for the forked holder, andtrolley-pole, and a slotted spring-barrel mounted on the swivelbase.

6. A trolley-pole carrying a trolley-wheel, a forked holder for thetrolley-pole, a pull-rod in the trolley-pole, a swivel-base with holdingcross-rod, for the forked holder, a slotted spring-barrel on theswivelbase, an actuated spring on the barrel, a movable block in thebarrel having arms through the slots to actuate the spring, and a chainconnecting said block with the pull rod, as described and shown.

In witness whereof I have hereunto set my hand, this 15th day of August,1903, in the presence of two subscribing witnesses.

. ANDRUS S. WVEAVER.

Witnesses:

E. B. l/VHI'ruoRE, MINNIE SMITH.

